We have a 1998 Pontiac Grand Prix. Cooling fans work when AC is on, but they will not turn on when engine gets to 230 degrees Fahrenheit without the AC on. We have swapped relays, changed the coolant temp sensor. Still no luck. Anything we are missing? We know the coolant 1 and coolant 2 relays are working because the fans come on with the AC. Not sure of the function of the other NO/NC relay.
have the same problem?
Thursday, December 22nd, 2011 AT 12:48 AM